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The inequality $\cfrac{2-gx-x^2}{1-x+x^2} \leq 3$ is true for all values of $x$ if and only if

  1. $1 \leq g \leq 7$
  2. $-1 \leq g \leq 1$
  3. $-6 \leq g \leq 7$
  4. $-1 \leq g \leq 7$
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